Why are there no great women comics creators? That's a trick question, of course. What makes a creator "great" is recognition as much as ability. The Women in Comics Wiki is, as you might guess from the name, a collaborative effort to publicize the work of the many, many women who have worked as writers, pencilers, inkers, colorists, letterers, and other types of creator throughout the history of comics. One good starting point: A list of women who were active during the Golden Age, drawn from David Hajdu's book The Ten-Cent Plague.
This isn't an ancient history wiki, though—contemporary women are included as well, and creators are welcome to create or edit their own pages, as long as they follow the general Way of the Wiki and aren't too self-congratulatory. The Wiki was started by the Ladies Making Comics Tumblr but anyone can play, and it has the potential to become a useful resource if enough people contribute, so go, look, write.
(Via The Beat.)